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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650) 364 9233 <br /> 404 N Wtget Lane Walnut Creek CA 94598 (9Z5)988-%00 FAX(925)988 9673 <br /> Analytical 819 Strkker Avenue SLjae 8 Sacramento CA 95834 (916)921-9600 FAX(916)921 0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707) 792-1865 FAX(707) 792-0342 <br /> Blaine Tech Services Client Prol ID Chevron 9-8264/980810-T1 Sampled 08/10/98 <br /> 1680 Rogers Avenue Sample Descript MW-1 Received 08/13/98 <br /> San Jose, CA 95112 Matrix LIQUID Extracted 08/21/98 <br /> Analysis Method EPA 8015 Mod Analyzed 08/25/98 <br /> Attention Fran Thie Lab Number 9808910-01 Reported 08f31/98 <br /> QC Batch Number GCO821980HBPEXA <br /> Instrument ID GCHP4A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L. <br /> TEPH as Diesel 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 77 <br /> I <br /> Results quantitated against a diesel standard <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> i <br /> Miy <br /> &'cWa <br /> ager Page 2 <br />